The Person Who Wrote this Sign Is Not My Hero

What is it about the word heroes that is so difficult for everyone? Smoochiefrog was dismayed to find this sign at an elementary school:


"If they're honoring Hiro from the TV show Heroes, they spelled his name wrong," writes Smoochiefrog. "If not, well you get the idea. It's wrong no matter how you spin it."

Let's hope this teacher isn't in charge of teaching punctuation. Thanks, SF.